Haurwitz Rachel E. — SEC Form 4 filings
SEC reporting owner CIK 1670579. 5 Form 4 filings on record with FilingPulse; latest filed 2026-02-20.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2024-02-22 to 2026-02-20. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 20,000 shares, $20,400 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: purchase of 20,000 shares @ $1.02 ($20,400) in Caribou Biosciences, Inc., filed 2025-03-17.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Caribou Biosciences, Inc. (CRBU) | President and CEO, Director | 4 | 1 leg · 20,000 sh · $20,400 | — | 6 |
| Seer, Inc. (SEER) | Director | 1 | — | — | 1 |
Form 4 filings — Haurwitz Rachel E.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-02-20 | 4 | Caribou Biosciences, Inc. (CRBU) | Grant/award (A): 151,700 @ $0 · Grant/award (A): 682,500 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | Caribou Biosciences, Inc. (CRBU) | Purchase (P): 20,000 @ $1.02 | EDGAR |
| 2025-02-21 | 4 | Caribou Biosciences, Inc. (CRBU) | Grant/award (A): 136,750 @ $0 · Grant/award (A): 618,250 (derivative) @ $0 | EDGAR |
| 2024-06-14 | 4 | Seer, Inc. (SEER) | Grant/award (A): 58,178 @ $0 | EDGAR |
| 2024-02-22 | 4 | Caribou Biosciences, Inc. (CRBU) | Grant/award (A): 118,700 @ $0 · Grant/award (A): 546,950 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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